Sofa



FIG. 1 is a perspective view of a first embodiment of a sofaillustrating the present invention;

FIG. 2 is a perspective view of the sofa shown in FIG. 1 viewed from theback thereof;

FIG. 3 is an end elevational view of the sofa illustrated in FIG. 1;

FIG. 4 is a view similar FIG. 1 of another embodiment of a sofaincorporating the present invention;

FIG. 5 is a perspective view of the sofa shown in FIG. 4 viewed from theback; and

FIG. 6 is an end elevational view of the sofa shown in FIGS. 4 and 5.

The ornamental design for a sofa, substantially as shown.